THERE are more childcare nightmares in the gripping final instalment of this thriller.

Last night opened with a mother's shocking discovery of her baby daughter dead in her cot. The nanny had disappeared and Roisin (Victoria Smurfit) was less than sympathetic when she discovered the girl's distraught mother had employed her without bothering to carry out a reference check.

Not that it would have done any good as the nanny had stolen the identity of another girl - a trick she had pulled many times before.

Now the suspect is in custody and pointing the finger of blame at the child's mother.

But detectives have discovered that this wasn't the only tragedy she'd been connected with in a long and chequered career. So, who can be trusted?

Powerful performances from Victoria Hamilton, as the grieving mother, and Sinead Matthews, as the callous childminder, will keep you glued to your seat until the end.